A downloadable game for Windows, macOS, and Linux

When the world had stopped and everything became alien, one researcher stumbled upon a cave that lead him to the center of the world. There he found a machine...

This game was made possible thanks to the amazing support of the following people:

Source code is available on github: https://github.com/RetrocadeNet/MachineAtTheHeartOfTheWorld

Hintbook: The game is pretty hard, sometimes may require too much guessing to figure things out and not everyone might be into that. Here is a hintbook hosted on Google Docs. It explains all of the rules in the game in the order they appear written in in-universe prose. If you want to figure things out yourself read carefully as to not read beyond what you should theoretically know so far.

Install instructions

Unzip and run MachineAtTheHeartOfTheWorld executable file (whichever platform you use).

Note: was not tested on Linux


MachineAtTheHeartOfTheWorld-winx64.zip 100 MB
MachineAtTheHeartOfTheWorld-winx86.zip 98 MB
MachineAtTheHeartOfTheWorld-linx64-v3.zip 99 MB
MachineAtTheHeartOfTheWorld-osx64-v4.zip 99 MB


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about lvl around 40-41 i dont know exactly, but the symbol is full in grid. Can you explain the answer? Because there is X and yinyang symbol, i dont get that mean..